A corpora



Feb. 21, 1933. J FgzGERALD 1,898,986

DRIVING ATTACHMENT FOR MIXING BOWLS Filed July 28. 1931 2 Sheets-Sheet lFeb. 21, 1933. p J FlTZGERALD l 1,898,986

DRIVING ATTACHMENT FOR MIXING BOWLS Filed July 28, 1931 2 Sheets-Sheet 2gnventoz I0 Patented Feb. 21', 1933 UNITED STATES PATENT ori-IcevPATRICK J'. FITZGERALD, OFv TORRINGTON, CONNECTICUT, ASSIGNOR TO THEFITZ- GERALD MANUFACTURING COMPANY, OF TORRINGTON, CONNECTICUT, ACORPORA- TION OF CONNECTICUT DRIVING ATTACHMENT FOR MIXING BOWLSApplication led July 28,

This invention relates to improvements in mixing bowls, and particularlyconcerns a driving device for `connecting the' beater mechanism and thebowl.

One of the features of the present invention is a separable drivingdevice which 1s operated from the beater mechanism and itself operatesto rotate the mixing bowl.

Another feature of the present invention is a construction of the beatermechanism by which a power driven mechanism receives a bowl drivingattachment which operates to rotate the bowl so that all parts of thecontents of a bowl are operated upon by an eccentrically mounted mixer.

Other features ofthe invention will appear in the course of thefollowing description in conjunction with the drawings.

In these drawings is set forth an illustrative form of construction ofthe device, and

Figure 1 is a plan view of the mixing bowl and driving attachment, withparts of the driving mechanism of the beater Vshown in section.\

Figure 2 is a view in section on line 2-2a of Figure 1 of the bowl anddriving attachment, and on line 2--2b of the beater mechanism, showingthe assemblage of these parts in their relative operating positions.

Figure 3 is a perspective view of the supporting bowl for the drivingattachment. y

Figure 4 is a perspective view of the housing plate for. the beatermechanism.

Figure 5 is a fragmentary section substantially on line 5-5 of Figure 2.

In the drawings, having a base 10 and a column 11 upon which is mountedthe motor M for driving the beaters. The stand likewise has asocket 12for receiving the pin 13 of the bowl B. The motor M is mounted with avertical axis and has its shaft 14 extending downwardly into a gear.housing 15 having a bottom closing plate 16. Within this housing theshaft 14 carries a pinion 17 in mesh with a large gear 18 rotatablymounted on a sleeve 19 supported in the housing and having its open endexposed below the plate 16.

A beater assembly comprising the U- a stand is illustrated 1931. SerialNo. 553,629.

shaped wire 20 has the revoluble beaters 21 thereon which are fixed attheir upper ends to the gears 22,23 which mesh with one another 4so thatwhen the gear 22 is turned both beaters are driven in unison in theusual way. A gear guard 24 enshrouds the gears and prevents injury.Within the gear guard "is a bushing 25 surrounding the fixed arm stub 30which is received in a hole 31 of the plate 16 and in acavity 32 of thehousing 15. The plate 16 extends beyond the housing 15 to provide a pairof upwardly turned ears 35 whichare located substantially in the samevertical plane and a horizontal flat portion 36 terminating in anupwardly directed ear 37.

The beater attachment has a central bolt portion 40 having a stirrup 41at its upper end provided with a pin 42. Surrounding this bolt is asleeve 43 having a gear 44 fixed at its upper end and a driving wheel 45fixed at its lower end, and being provided with a groove by whichv itmay rest on the curled upper edge Ba of the bowl B. A spacingwasher 46permits the free rotation of the assembly 43, 44, 45, and is held inposition by a bolt 40.

lIn operation, as the motor M revolves, the motor shaft 14 and pinion 17are driven and therewith the large gear 18 which transmits its movementthrough the sleeve 19 to the bushing 25. of the right hand beater inFigure 2, and the latter in turn delivers its movement through gear 22to gear 23 and nut 47 on the lower end of the` tered thereon.

It isvobvious that the invention is not limited to the form ofconstruction but that such may be modified in many ways within the scopeof the appended claims.

Having thus described the invention, what I claim as new and desire tosecure by Letters Patent, is

l. A mixer includingr a revolubl supported bowl, a beating devicecomprising a fixed member having a horizontal plate, a beater supportedby said member and a first gear rotated with said beater, spacedupturned ears on said plate, a pivot member supported between said ears,a revoluble shaft mounted on said pivot member, a

' second gear on said shaft in mesh with said first gear, and a drivingmember on said shaft resting on the edge of said bowl.

2. A mixer including a revolubly supported bowl, a beating devicecomprising a fixed member having a horizontal plate, a beater supportedby said member and a first gear rotated with said beater, spacedupturned ears on said plate, a pivot member gravitationally supportedvbetwebn said vears and including a spindle extension, a hollowrevoluble shaft on said spindle, a second gear on said shaft in meshwith said first gear, and a driving member on said shaft gravitationallyresting on the attaching of said bowl, whereby said pivot member, shaft,gear and driving member may be removed by lifting the parts from saidears and bowl.

3. The combination with a mixer including a. frame, a beating devicecomprising plural beaters with driving means for one beater mounted onsaid frame and intermeshinu gears on said beaters, and a bowl revolublymounted on said frame, of a driving member resting on the edge of thebowl, and a supporting and driving connection between one of saidintermeshing gears and said` driving member, said connection having apivotal mounting on said frame whereby it may be moved about ahorizontal axis to present said driving member into and out ofengagement with said bowl, and the member is held by gravity in contactwith said bowl during operation.

4. The combination with a mixer including a frame, a. beating devicecomprising a member fixed to said frame and a plurality of beatersjournaled in said member and intermeshing gears on said beaters, and abowl revolubly supported on said frame, of a driving member resting onthe edge of said bowl, a shaft having a demountable journal bearing onsaid fixed member and connected to said driving member, and a gear onsaid shaft adapted to mesh with one of said intermeshing gears, saidjournal bearing permitting said shaft to rock about a horizontal axis sothat the driving member may gravitationally engage the edge of the bowland said shaft gear may mesh with said intermeshing gear and whereby thedriving member may be swung upwardly out of engagement with the bowl andthereby said shaft gear be moved out of mesh with said intermeshinggear.

5. A mixer including a frame, a beating device comprising a member fixedto the frame and a beater journalled in said member, a bowl revolubly`supported on the frame, a driving member gravitationally resting on theedge ofthe bowl, a support on said fixed member, a shaft connected tosaid driving member, releasable means for connecting the beater andshaft in driving relationship, a journal device in which said shaft mayrotate and having means for gravtationally engaging said support forpivotal movement about a horizontal axis, whereby the shaft, device andmember may be removed by simple lifting from the bowl and support.

In testimony whereof I aflix my signature.

PATRICK J. FITZGERALD.

